[MW1.5+] Returns the number of uploaded files (rows in the image table).

{{NUMBEROFUSERS}}{{NUMBEROFUSERS:R}}

8,7708770

[MW1.7+] Returns the number of registered users (rows in the user table).

{{NUMBEROFADMINS}}{{NUMBEROFADMINS:R}}

1616

[MW1.7+] Returns the number of administrators (users in the sysop group).

System Load

If your machine has a multicore desktop CPU running at full speed all the time you will probably not even notice that there IS a load on the machine. I however happen to run an old notebook as a server and whenever the load goes up a bit, the nasty little fan starts making a lot of noise. So I tried to hunt down the source of the system load.

Comparison

The following table shows system load. That is time spent in C0(cpu running) in contrast to time spent in one of the sleep states. It should be noted that the work is being done at 188MHz on a 1.5GHz CPU.

As you can see the differences in system load are quite dramatic. The dominating factor is the number of USB transfers. Looking at the dvb sources, the dib0700 driver seems to use 39480 byte buffers. I finally got my fingers on a Cinergy XXS. I had to repeat some measurements for the EC168 but now the data is quite solid.

Detailed powertop measurements

More details:

I ran zap and vdr on a system that is idle. Without zap or vdr
the system does about 5 wakups per second and spends about 0.1% of its time in C0 (cpu running).

Polling of the remote is disabled using the module option disable_rc_polling=1 for the dvb_usb module.

The hardware PID filter is enabled with the option force_pid_filter_usage=1 for the dvb_usb module.

vdr is the one from e-tobi.net/vdr-experimental lenny vdr-extensions
here's the list of plugins that were enabled during the test:
| Searching for plugins (VDR 1.6.0-2/1.6.0) (cache hit): epgsearch quickepgsearch conflictcheckonly live epgsearchonly ffnetdev streamdev-server.

SinoVideo SV3420D-V02

This device is based on the E3C_EC168 Chip. Support is very experimental and based on USB sniffing. Most features will not work. It probably does not have a pid filter but thats just one of the many unknowns. If anybody gets hold of the EC168 or EC188 specs please please send me a copy.

The name and number schema seems a little intransparent for the whole family of devices but they are cheap as chips. I picked up mine new via ebay from a Chinese shop for less than 6 Euros (+pp), including remote and antenna. It was sold to me as SV3420B but the PCB says SV3420D-V02. I've seen pictures of the device under a lot of different pseudo brands. (Try a google image search for "3420 DVB-T".)

The driver CD is named "SV3420A" and all files are timestamped September 2007. So my guess is that the only changes that happened between the "A" version an the current "D-V02" version are changes to the case design, the PCB layout and maybe some minor components. Since the windows driver seems to be the same for all those devices, my guess is that the Linux driver should also work equally for all of them.